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发明名称
Typewriting machine
摘要
申请公布号
US1757516(A)
申请公布日期
1930.05.06
申请号
US19280316261
申请日期
1928.10.31
申请人
ROYAL TYPEWRITER COMPANY, INC.
发明人
DEGENER GUSTAVE O.
分类号
B41J19/76
主分类号
B41J19/76
代理机构
代理人
主权项
地址
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摇床
